Parse integers

Compute the sum of integers read from STDIN as fast as possible.

Input: 50 000 000 lines, each containing one integer in the range [0; 2147483647].

Output: The uint64 sum of all numbers, printed as a decimal string.

Note: Integer overflow is expected – use a 64-bit accumulator.

Restrictions:30s512Mb 1 Score Packages

Feel free to create an issue if you need an extra library from the standard Ubuntu repository.

Name	Version	Description
libc6-dev	2.39-0ubuntu8.7	GNU C Library: Development Libraries and Header Files Contains the symlinks, headers, and object files needed to compile and link programs which use the standard C library.
libclang-common-14-dev	1:14.0.6-19build4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-15-dev	1:15.0.7-14build3	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-16-dev	1:16.0.6-23ubuntu4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-17-dev	1:17.0.6-9ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-18-dev	1:18.1.3-1ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-19-dev	1:19.1.1-1ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-20-dev	1:20.1.2-0ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libcrypt-dev	1:4.4.36-4build1	libcrypt development files This package contains the files needed for developing applications that use libcrypt.
libgcc-10-dev	10.5.0-4ubuntu2.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-11-dev	11.5.0-1ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-12-dev	12.4.0-2ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-13-dev	13.3.0-6ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-14-dev	14.2.0-4ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libobjc-13-dev	13.3.0-6ubuntu2~24.04.1	Runtime library for GNU Objective-C applications (development files) This package contains the headers and static library files needed to build GNU ObjC applications.
libssl-dev	3.0.13-0ubuntu3.9	Secure Sockets Layer toolkit - development files This package is part of the OpenSSL project's implementation of the SSL and TLS cryptographic protocols for secure communication over the Internet. . It contains development libraries, header files, and manpages for libssl and libcrypto.
libstdc++-10-dev	10.5.0-4ubuntu2.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-11-dev	11.5.0-1ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-12-dev	12.4.0-2ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-13-dev	13.3.0-6ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-14-dev	14.2.0-4ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libtbb-dev	2021.11.0-2ubuntu2	parallelism library for C++ - development files TBB is a library that helps you leverage multi-core processor performance without having to be a threading expert. It represents a higher-level, task-based parallelism that abstracts platform details and threading mechanism for performance and scalability. . (Note: if you are a user of the i386 architecture, i.e., 32-bit Intel or compatible hardware, this package only supports Pentium4-compatible and higher processors.) . This package includes the TBB development files.

Date	Author	Language	Status	Score
Jul 28, 2025 00:12	Marco Barbone	CPPg++13.3.0	Success	106,980
Jul 27, 2025 19:09	Ruoyu Qiu	CPPg++13.3.0	Error
Jul 27, 2025 19:08	Ruoyu Qiu	CPPg++13.3.0	Error
Jul 27, 2025 19:06	Ruoyu Qiu	CPPg++13.3.0	Error
Jul 27, 2025 19:04	Ruoyu Qiu	CPPg++13.3.0	Success	80,345+77.75 RP
Jul 27, 2025 18:51	Ruoyu Qiu	CPPg++13.3.0	Error
Jul 27, 2025 16:54	Ruoyu Qiu	CPPg++13.3.0	Error
Jul 27, 2025 16:26	Ruoyu Qiu	CPPg++13.3.0	Success	222,157
Jul 27, 2025 04:58	Serendipity1902	CPPg++13.3.0	Success	55,431
Jul 27, 2025 04:57	Serendipity1902	CPPg++13.3.0	Success	52,605
Jul 27, 2025 04:29	Serendipity1902	CPPg++13.3.0	Success	67,252
Jul 27, 2025 04:27	Serendipity1902	CPPg++13.3.0	Success	44,813+28.21 RP
Jul 27, 2025 04:26	Serendipity1902	CPPg++13.3.0	Success	89,281
Jul 27, 2025 04:24	Serendipity1902	CPPg++13.3.0	Success	51,299+7.01 RP
Jul 27, 2025 04:22	Serendipity1902	CPPg++13.3.0	Success	53,212+39.55 RP
Jul 27, 2025 04:18	Serendipity1902	CPPg++13.3.0	Success	68,288
Jul 27, 2025 04:12	Serendipity1902	CPPg++13.3.0	Success	83,134
Jul 27, 2025 04:02	Serendipity1902	CPPg++13.3.0	Success	72,114
Jul 27, 2025 04:00	Serendipity1902	CPPg++13.3.0	Success	67,394+19.29 RP
Jul 27, 2025 03:57	Serendipity1902	CPPg++13.3.0	Success	77,465+129.09 RP
Jul 27, 2025 03:29	Ruoyu Qiu	CPPg++13.3.0	Success	258,095
Jul 27, 2025 03:02	Marco Barbone	CPPg++13.3.0	Success	127,387
Jul 27, 2025 02:51	Marco Barbone	CPPg++13.3.0	Success	93,676
Jul 27, 2025 02:30	Marco Barbone	CPPg++13.3.0	Success	73,986
Jul 27, 2025 02:27	Marco Barbone	CPPg++13.3.0	Success	73,968+96.14 RP
Jul 27, 2025 02:00	Marco Barbone	CPPg++13.3.0	Success	256,056+31.05 RP
Jul 27, 2025 01:59	Marco Barbone	CPPg++13.3.0	Error
Jul 27, 2025 01:55	Marco Barbone	CPPg++13.3.0	Error
Jul 27, 2025 01:24	Marco Barbone	CPPg++13.3.0	Success	1,249,620+8.00 RP
Jul 26, 2025 17:14	Ruoyu Qiu	CPPg++13.3.0	Error
Jul 26, 2025 17:12	Ruoyu Qiu	CPPg++13.3.0	Error
Jul 26, 2025 16:38	Ruoyu Qiu	CPPg++13.3.0	Error
Jul 26, 2025 15:26	Ruoyu Qiu	CPPg++13.3.0	Error
Jul 26, 2025 15:25	Ruoyu Qiu	CPPg++13.3.0	Error
Jul 26, 2025 15:15	Ruoyu Qiu	CPPg++13.3.0	Success	214,057+4.28 RP
Jul 26, 2025 15:12	Ruoyu Qiu	CPPg++13.3.0	Success	235,639+0.09 RP
Jul 26, 2025 15:10	Ruoyu Qiu	CPPg++13.3.0	Success	236,144+22.99 RP
Jul 26, 2025 15:03	Ruoyu Qiu	CPPg++13.3.0	Error
Jul 26, 2025 14:57	Ruoyu Qiu	CPPg++13.3.0	Success	546,824
Jul 25, 2025 20:24	Ruoyu Qiu	CPPg++13.3.0	Success	546,473
Jul 25, 2025 20:23	Ruoyu Qiu	CPPclang++18.1.3	Success	542,558
Jul 25, 2025 20:00	Ruoyu Qiu	CPPclang++18.1.3	Success	541,477
Jul 25, 2025 19:59	Ruoyu Qiu	CPPclang++18.1.3	Error
Jul 25, 2025 19:55	Ruoyu Qiu	CPPclang++18.1.3	Error
Jul 25, 2025 19:52	Ruoyu Qiu	CPPclang++18.1.3	Error
Jul 25, 2025 19:51	Ruoyu Qiu	CPPclang++18.1.3	Error
Jul 25, 2025 18:57	Ruoyu Qiu	CPPclang++18.1.3	Success	516,535+19.36 RP
Jul 25, 2025 18:54	Ruoyu Qiu	CPPclang++18.1.3	Error
Jul 25, 2025 18:30	Ruoyu Qiu	CPPclang++18.1.3	Error
Jul 25, 2025 18:15	Hayk Karapetyan	CPPg++13.3.0	Success	74,485
Jul 25, 2025 18:07	Hayk Karapetyan	CPPg++13.3.0	Success	53,291
Jul 25, 2025 17:55	Hayk Karapetyan	CPPg++13.3.0	Success	53,305
Jul 25, 2025 17:54	Hayk Karapetyan	CPPclang++18.1.3	Success	57,278
Jul 24, 2025 18:58	Leon Zhao	CPPg++13.3.0	Success	70,409
Jul 24, 2025 18:38	imbr92	CPPclang++18.1.3	Error
Jul 24, 2025 18:38	Leon Zhao	CPPg++13.3.0	Success	66,748
Jul 24, 2025 18:37	imbr92	CPPclang++18.1.3	Error
Jul 24, 2025 18:36	imbr92	CPPclang++18.1.3	Error
Jul 24, 2025 18:25	imbr92	CPPclang++18.1.3	Error
Jul 24, 2025 18:21	Leon Zhao	CPPg++13.3.0	Success	70,063
Jul 24, 2025 18:21	imbr92	CPPclang++18.1.3	Error
Jul 24, 2025 18:20	Leon Zhao	CPPg++13.3.0	Success	69,602
Jul 24, 2025 18:07	Leon Zhao	CPPg++13.3.0	Error
Jul 24, 2025 17:57	imbr92	CPPclang++18.1.3	Success	393,519+25.41 RP
Jul 24, 2025 17:54	Leon Zhao	CPPg++13.3.0	Success	66,475+0.58 RP
Jul 24, 2025 17:53	Leon Zhao	CPPg++13.3.0	Success	68,347
Jul 24, 2025 17:48	Leon Zhao	CPPg++13.3.0	Success	80,705
Jul 24, 2025 17:45	Leon Zhao	CPPg++13.3.0	Success	66,733+2.70 RP
Jul 24, 2025 17:34	Leon Zhao	CPPg++13.3.0	Success	67,957+35.33 RP
Jul 24, 2025 17:19	Leon Zhao	CPPg++13.3.0	Success	89,430+106.98 RP
Jul 24, 2025 16:07	Leon Zhao	CPPg++13.3.0	Success	2,067,725+4.84 RP
Jul 24, 2025 05:13	Hayk Karapetyan	CPPg++13.3.0	Success	63,400
Jul 24, 2025 04:44	Hayk Karapetyan	CPPg++13.3.0	Success	66,854
Jul 23, 2025 21:18	Hayk Karapetyan	CPPg++13.3.0	Success	61,297
Jul 21, 2025 20:34	Aniruddha Deb	CPPg++13.3.0	Success	5,887+12.89 RP
Jul 15, 2025 20:58	Safronov Aleksei	CPPclang++18.1.3	Success	64,015
Jul 15, 2025 20:57	Safronov Aleksei	CPPclang++18.1.3	Success	64,024
Jul 15, 2025 20:57	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:56	Safronov Aleksei	CPPclang++18.1.3	Success	69,314
Jul 15, 2025 20:55	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:55	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:54	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:53	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:53	Safronov Aleksei	CPPclang++18.1.3	Success	50,201
Jul 15, 2025 20:53	Safronov Aleksei	CPPclang++18.1.3	Success	50,176
Jul 15, 2025 20:52	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:51	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:51	Safronov Aleksei	CPPclang++18.1.3	Success	50,195
Jul 15, 2025 20:50	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:50	Safronov Aleksei	CPPclang++18.1.3	Success	50,181
Jul 15, 2025 20:50	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:49	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:49	Safronov Aleksei	CPPclang++18.1.3	Success	50,182
Jul 15, 2025 20:48	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:48	Safronov Aleksei	CPPclang++18.1.3	Success	50,175
Jul 15, 2025 20:47	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:47	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:47	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:46	Safronov Aleksei	CPPclang++18.1.3	Error
Jul 15, 2025 20:46	Safronov Aleksei	CPPclang++18.1.3	Success	50,186

Model	Intel(R) Xeon(R) CPU E3-1271 v3 @ 3.60GHz
Cores	1